org.quattor.pan.statement
Class ConstantAssignmentStatement

java.lang.Object
  org.quattor.pan.statement.Statement
      org.quattor.pan.statement.AssignmentStatement
          org.quattor.pan.statement.ConstantAssignmentStatement

public class ConstantAssignmentStatement
extends AssignmentStatement

Assigns either a constant or computed value to an absolute path. If the value is Null, then the path is deleted.

Author:

loomis

Field Summary

protected Element

value

Fields inherited from class org.quattor.pan.statement.AssignmentStatement

conditional, modifiable, path

Constructor Summary

protected

ConstantAssignmentStatement(SourceRange sourceRange, Path path, Element value, boolean conditional, boolean modifiable) This constructor creates a new AbsoluteAssignmentStatement that assigns a constant value (Element) to the associated path.

Method Summary

void	execute(Context context) Execute this Statement within the given context.
java.lang.String	toString() Return a reasonable string representation of this statement.

Methods inherited from class org.quattor.pan.statement.AssignmentStatement

createAssignmentStatement, createAssignmentStatement, isAbsolute, isRelative

Methods inherited from class org.quattor.pan.statement.Statement

getSourceRange

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

value

protected final Element value

Constructor Detail

ConstantAssignmentStatement

protected ConstantAssignmentStatement(SourceRange sourceRange,
                                      Path path,
                                      Element value,
                                      boolean conditional,
                                      boolean modifiable)
                               throws SyntaxException

This constructor creates a new AbsoluteAssignmentStatement that assigns a constant value (Element) to the associated path.

Parameters:

sourceRange - source location of this statement

path - machine configuration path (non-external) to modify

value - constant Element value to assign to path

conditional - flag indicating if this is a conditional assignment (i.e. if the value already exists, don't do anything)

modifiable - flag indicating if the path can be further modified (i.e. 'final' functionality)

Throws:

SyntaxException

Method Detail

execute

public void execute(Context context)
             throws EvaluationException

Description copied from class: Statement

Execute this Statement within the given context.

Specified by:

execute in class Statement

Parameters:

context - DML context to use for the evalution of this statement

Throws:

EvaluationException

toString

public java.lang.String toString()

Return a reasonable string representation of this statement.

Overrides:

toString in class java.lang.Object

Returns:

String representation of this statement